81622240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:417

約数の個数: 144

約数和(自身を含む): 232696800

約数和(自身を除く): 151074560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 70, 80, 98, 112, 116, 140, 145, 160, 196, 203, 224, 232, 245, 280, 290, 359, 392, 406, 464, 490, 560, 580, 718, 784, 812, 928, 980, 1015, 1120, 1160, 1421, 1436, 1568, 1624, 1795, 1960, 2030, 2320, 2513, 2842, 2872, 3248, 3590, 3920, 4060, 4640, 5026, 5684, 5744, 6496, 7105, 7180, 7840, 8120, 10052, 10411, 11368, 11488, 12565, 14210, 14360, 16240, 17591, 20104, 20822, 22736, 25130, 28420, 28720, 32480, 35182, 40208, 41644, 45472, 50260, 52055, 56840, 57440, 70364, 72877, 80416, 83288, 87955, 100520, 104110, 113680, 140728, 145754, 166576, 175910, 201040, 208220, 227360, 281456, 291508, 333152, 351820, 364385, 402080, 416440, 510139, 562912, 583016, 703640, 728770, 832880, 1020278, 1166032, 1407280, 1457540, 1665760, 2040556, 2332064, 2550695, 2814560, 2915080, 4081112, 5101390, 5830160, 8162224, 10202780, 11660320, 16324448, 20405560, 40811120, 81622240]

約数ペア:

[(1, 81622240), (2, 40811120), (4, 20405560), (5, 16324448), (7, 11660320), (8, 10202780), (10, 8162224), (14, 5830160), (16, 5101390), (20, 4081112), (28, 2915080), (29, 2814560), (32, 2550695), (35, 2332064), (40, 2040556), (49, 1665760), (56, 1457540), (58, 1407280), (70, 1166032), (80, 1020278), (98, 832880), (112, 728770), (116, 703640), (140, 583016), (145, 562912), (160, 510139), (196, 416440), (203, 402080), (224, 364385), (232, 351820), (245, 333152), (280, 291508), (290, 281456), (359, 227360), (392, 208220), (406, 201040), (464, 175910), (490, 166576), (560, 145754), (580, 140728), (718, 113680), (784, 104110), (812, 100520), (928, 87955), (980, 83288), (1015, 80416), (1120, 72877), (1160, 70364), (1421, 57440), (1436, 56840), (1568, 52055), (1624, 50260), (1795, 45472), (1960, 41644), (2030, 40208), (2320, 35182), (2513, 32480), (2842, 28720), (2872, 28420), (3248, 25130), (3590, 22736), (3920, 20822), (4060, 20104), (4640, 17591), (5026, 16240), (5684, 14360), (5744, 14210), (6496, 12565), (7105, 11488), (7180, 11368), (7840, 10411), (8120, 10052)]